6-1/2" polypropylene woofer cone / top-mount depth: 1-11/16"</br>power range: 2-40 watts RMS (250 watts peak power)</br>frequency range: 31-29??000 Hz / sensitivity: 90 dB</br></br>Product Description</br></br>2-way car speakers (pair) Injected Molded PolypropyleneTM (IMPP) with MICA Composite Cone Woofer</br>